positive moment

Definition

Construction

A condition of flexure in which, for a horizontal simply supported member, the deflected shape is normally considered to be concave downward and the top fibers subjected to compression stresses. For other members and other conditions, consider positive and negative as relative terms. See also negative moment. (Note: For structuraldesign and analysis, moments may be designated as positive or negative with satisfactory results as long as the sign convention adopted is used consistently.)